问答题 下面是某教师一节课导人环节的教学实录，单元话

问答题
下面是某教师一节课导人环节的教学实录，单元话题为 Animals in danger。
T: Hi, Class! Let's look at these pictures! Can you tell us what animals they are?
Ss: Elephants!/Tigers!/Monkeys !/Dolphins!
T: Let's see what these animals can do. Can elephants swim?
Ss: Yes.
T: Can tigers swim?
Ss: Yes.
...
T: What animals do you like best? S 1.
S 1: Pandas.
T: Why do you like them?
S 1: Because they are cute.
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T: Great! Anyone else? Do you like tigers? $2.
$2: Yes.
T: Why?
$2: Because they are brave.
T: Can you tell us where they live?
Ss: In the zoo./In the forest./In the cage.
T: Look! (pointing to the tiger in the cage) Why are they sad?
Ss: ...
根据所给信息从下列三个方面作答。
(1)列出该教师运用封闭式和开放式提问的各两个例句。
(2)分析封闭式问题与开放式问题各自的一个优点和一个缺点。
(3)分析该教师提问的两个特点。